LAr DT mon fixes, addressing https://its.cern.ch/jira/browse/ATLASRECTS-7976
Following https://its.cern.ch/jira/browse/ATLASRECTS-7976 We still have issues with attempts to access indices of vectors which do not exist.
Following https://its.cern.ch/jira/browse/ATLASRECTS-7976 We still have issues with attempts to access indices of vectors which do not exist.